What is the CVSS score of CVE-2019-3396?

CVE-2019-3396 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 94.5%.

Which versions of Atlassian Confluence Server are affected by CVE-2019-3396?

Organizations using Atlassian Confluence Server face critical risk from CVE-2019-3396, a path traversal vulnerability rated CVSS 9.8.. A patch is available.

Is there a public PoC exploit available for CVE-2019-3396?

Yes, a public proof-of-concept exploit is available for CVE-2019-3396. Prioritise patching immediately. EPSS: 94.5%.

How to fix or mitigate CVE-2019-3396?

Within 24 hours: Identify all affected systems running Atlassian Confluence Server and apply vendor patches immediately. Review file handling controls and restrict upload directories.

Atlassian Confluence Server CVE-2019-3396

CRITICAL

Path Traversal (CWE-22)

2019-03-25 security@atlassian.com

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 26, 2026 - 11:19 vuln.today

Added to CISA KEV

Oct 24, 2025 - 13:39 cisa

CISA KEV

PoC Detected

Oct 24, 2025 - 13:39 vuln.today

Public exploit code

Patch released

Oct 24, 2025 - 13:39 nvd

Patch available

CVE Published

Mar 25, 2019 - 19:29 nvd

CRITICAL 9.8

DescriptionCVE.org

The Widget Connector macro in Atlassian Confluence Server before version 6.6.12 (the fixed version for 6.6.x), from version 6.7.0 before 6.12.3 (the fixed version for 6.12.x), from version 6.13.0 before 6.13.3 (the fixed version for 6.13.x), and from version 6.14.0 before 6.14.2 (the fixed version for 6.14.x), allows remote attackers to achieve path traversal and remote code execution on a Confluence Server or Data Center instance via server-side template injection.

AnalysisAI

Atlassian Confluence Server Widget Connector macro contains a path traversal and server-side template injection vulnerability enabling unauthenticated remote code execution through crafted URLs.

Technical ContextAI

The CWE-22 path traversal in the Widget Connector's URL parameter allows injection of server-side template directives. The Velocity template engine processes the injected code, enabling execution of arbitrary Java methods and OS commands on the Confluence server.

Affected ProductsAI

Atlassian Confluence Server before 6.6.12 Atlassian Confluence Server 6.7.0 before 6.12.3 Atlassian Confluence Server 6.13.0 before 6.13.3 Atlassian Confluence Server 6.14.0 before 6.14.2

RemediationAI

Upgrade Confluence Server immediately. Restrict external access to Confluence. Disable the Widget Connector macro if not needed. Check for signs of compromise including cryptominers and web shells.

CVE-2019-3396 vulnerability details – vuln.today

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Atlassian Confluence Server CVE-2019-3396

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

Affected ProductsAI

RemediationAI

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External POC / Exploit Code